31918185

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1399}}^1$

素因数の和:1439

約数の個数: 48

約数和(自身を含む): 61488000

約数和(自身を除く): 29569815

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 169, 195, 351, 507, 585, 845, 1399, 1521, 1755, 2535, 4197, 4563, 6995, 7605, 12591, 18187, 20985, 22815, 37773, 54561, 62955, 90935, 163683, 188865, 236431, 272805, 491049, 709293, 818415, 1182155, 2127879, 2455245, 3546465, 6383637, 10639395, 31918185]

約数ペア:

[(1, 31918185), (3, 10639395), (5, 6383637), (9, 3546465), (13, 2455245), (15, 2127879), (27, 1182155), (39, 818415), (45, 709293), (65, 491049), (117, 272805), (135, 236431), (169, 188865), (195, 163683), (351, 90935), (507, 62955), (585, 54561), (845, 37773), (1399, 22815), (1521, 20985), (1755, 18187), (2535, 12591), (4197, 7605), (4563, 6995)]